Timothy c



L L A H O 0 T Oiler.

No. 234,959. Patented Nov. 30, 1880.

IWENTD 5M3, ZW

NFETERS. PHOTO UTNOGRAPHE UNITE TATES TIMOTHY O. CHALK, OF VALLEY FALLS,RHODE ISLAND.

OILER.

SPECIFICATION forming part of Letters Patent No. 234,959, dated November30, 18 80. Application filed March 18, 1880. (No model.)

To all whom it may concern:

Be it known that 1, TIMOTHY U. CHALK, of Valley Falls, in the county'ofProvidence and State of Rhode Island, have invented a new and usefulOiler, of which the following is a specification.

My invention relates to that class of oilers which are provided withinlet air-vents; and it consists in connecting to the screw-cap ot' theoiler a U-shaped tube, one arm of which passes entirely through the tubeand is open to the external air, while the other arm is cut off insideof the body of the oiler at a point near the top, so that air can flowinto the interior of the can, and thus allow the free outward flow ofthe oil.

By having this U-shaped tube attached to the cap of the oiler it can beeasily removed and cleansed.

In the drawings, Figure 1 is a vertical section of the entire oiler.Fig. 2 is an elevation of the delivery-tube, the screw-cap, and theU-shaped vent-tube. Fig. 3 is a plan of the oiler.

A is the body of the oiler, made in any desired size or form and of anysuitable material. Into the top of the body A, I insert the screw-cap O,and I attach to this cap U the dclivery-tube B and the inlet air-venttube D D D (See Figs. 1 and 2.) This tube D D D passes through thescrew-cap C and has an opening into the external air at 0. end, D ofthis tube opens into the interior of the can near the top, as shown inFig. 1. The object of this tube D D D is to admit air to the can, so asto allow the oil to freely flow. With this arrangement the oil willnever flow from the vent-hole c, as the gravity of the fluid within thetube B would overcomethat of the fluid that might be in the tube D D Dand thus prevent any of it from coming out at the orifice.

I am aware that oilers have been provided with an air-vent tube attachedat one or both ends to a collar inserted in the neck of theoilreceptacle, said collar being screw-threaded and having thedelivery-tube removably secured thereto; further, that oilers have beenThe other provided with an air-vent attachment consisting of a tubeattached at one end to the collar of the delivery-tube, said tubecommunicating at its lower end with a conical-shaped receptacle, theupper and contracted exit of which is located near the top of theoil-receptacle, and hence I would have it understood that I make noclaim to such forms of construction.

In the type of oilers first mentioned the construction is complex andcostly, and also the air-vent is rendered diflicult in cleansing. In thelatter form of construction the irregularshaped air vent attachment isdifficult to cleanse. The sediment in the oil is liable to settle withinthe conical-shaped air-conduit, and is rendered difficult in its removaltherefrom; and, further, the oil will escape from the air-inlet openingunless the delivery-tube be made disproportionately large, because it isnecessary-that the. gravity of oil in the delivery-tube shall exceed thegravity of oil in the air-vent attachment to prevent the escape of oilfrom the air-inlet.

My invention consists simply in the combination, with the screw-cap towhich the delivery-tube is attached, ot a U-sha-ped tube secured at oneend to said screw-cap, and coinmunicating with the outer air, said tubeextending nearly to the bottom of the oil-receptacle, and the other endextending upwardly nearly to the screw-cap, the U-shaped tube being ofsmaller capacity than that of the delivery-tube.

Having thus described my invention, what I desire to secure by LettersPatent is The combination, with an oil-receptacle and a screw-cap havingthe delivery-tube permanently attached thereto, ot' a U-shaped airventpipe attached at one end to said screwcap andcoi'ninunicating with theouter air, the other end of the "exit-pipe being located in closeproximity to the screw-cap, the capacity of the vent-tube beingless thanthat of the delivery-tube, substantially as set forth.

TIMOTHY O. CHALK.

Witnesses: HORACE A. FoLLnr'r, HORACE O. LAWTON.

